30b 31d 32d 33a 34b 35a 

1b 2a 3d 4b 5c 6c 7b 8b 9a 10d 11b 12c 13c 14a 15b 16c 17b 18a 19c 20c 21a 22d 23c 24a 

1b 2d 3c 4d 5a 6c 7c 8b 9d 10d

1 walks

2 had

3 swings

4 higher

5 words

6 out

7 went

8 take

9 our

10a

My aunt is going to give birth to her baby in September

14d 15b 16d 17c 18b 19a 20c 21c 22b 23c 24d 25a 26b 27a 28c 29d 30a 

1a 2b 3c 4c 5d 6a 7b 8c

4 It's 5 years since Lady Gaga went to Viet Nam

5 I wish I could join the trip with you

6 The man has collected coins for ten years

7 I spend five minutes walking to school

8 We wish he didn't have to go now

9 I have been cooking for the party for 4 hours

10 I wish we didn't miss the bus

11 Tom wishes he weren't too weak to lift that box

12 They'd rather he took part in the contest

a. Industrial activities have greatly destroyed the environment in recent years

b. Online shopping is both beneficial and harmful to the environment

c. This trend can reduce the number of private vehicles

d. One of the main causes of air pollution is exhaust fumes from private vehicles

e. The growth of e-commerce brings both negative and positive impacts to employment

f. Living in cities gives people more job opportunities and better education

g. The government should be responsible for protecting the environment

h. Individuals can greatly contribute to environmental protection by working together

i. Compared to the countryside, the cost of living in cities is much higher

j. Tackling the problem of unemployment is still a question for the government

3 There has been a considerable rise in the cost of living in the last few years

4 David prides himself on being never late

5 Norman regretted having lost his temper

6 The man is believed to have escaped in a stolen car

7 An electric fence prevented visitors from the animals

8 I had all my crops completely wiped out by the storm

9 Despite strongly disapproving of your behaviour, I will help you this time

10 I was the last person to hear about the accident

11 It's years since I enjoyed myself so much

12 Only by training hard every day can you become a good athlete

13 The man was not able to go on an expedition to the Middle East because he was old

14 Had it not been for the goalkeeper, we wouldn't have saved the match

15 The news was so bad that Hele burst into tears

1 not in favor of

2 having spoken to her

3 definitely doesn't have the intention of getting married

4 couldn't put up with the neighbors' all-night parties

5 blamed me for having caused 

1 They have driven a car for two years

2 It is the first time I have ever been here

3 Do you remember the teacher who taught us history?

4 My mother reminded me to look at the door

5 They wish he wouldn't come here late

6 I wish I could remember the answers to these questions

7 Nam said he had to go to Ha Noi the next day

8 If you don't phone your parents, you will have a trouble

9 The girl who didn't hear the phone is a bit deaf

10 The house which my father bought last year costs a lot of money

He used to wear jeans when he was a student

My parents have lived here for more than 20 years

Nam hasn't finished his work yet